Car-coupling



(N0 Model.) 1 L. D. MURPHY.

GAR COUPLING. No. 513,131.

Patented Jan. 23, 1894.

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UNITED STATES PATENT QFFICE.

LIVY D. MURPHY, OF INDEPENDENCE, ASSIGNOR OF ONE-HALF TO J. PHILIPKNOOHE, OF KANSAS CITY, MISSOURI.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 513,131, dated January23, 1894.

Application filed September 23, 1893- Serial No. 486,284. (No model.)

To all whom it may concern.-

Be it known that I, LIVY D. MURPHY, of Independence, Jackson county,Missouri, have invented certain new and useful Improvements inOar-Couplers, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart hereof.

My invention relates to improvements in car-couplers, and the objects ofmy invention are to provide a device of this kind, which is simple,strong and durable, and inexpensive of construction, which willautomatically and positively couple cars when brought together for thatpurpose, and which may be used in connection with any of the usual linkcarrying draw-heads now in use.

With these objects in view my invention consists in its peculiarconstruction and combination of parts, as hereinafter described, claimedand illustrated in the accompanying drawings, in which Figure 1 is avertical longitudinal section of my improved coupler in its uncoupled orinoperative position, Fig. 2, is a vertical longitudinal section of thecoupler and shown in its coupled or operative position. Fig. 3, is adetail perspective view of the pivotal trip-block. Fig. 4, is a detailview of the cylindrical rod or bolt upon which the trip-block ispivotally carried.

In the said drawings, 1 designates the drawhead provided with the usualdraw-bar 2, and this draw-head is provided with the usual flaring mouth,3, communicating with the recess 4t, and the upper converging wall ofthe flaring mouth 3, is extended downwardly a suitable distance, as at5, and the transverse cylindrical recess 6, is formed in the rear orinner side of said extension. Extending horizontally through thedraw-head, and the recess 6 is a rod 10, and this rod is secured firmlyin position by means of a nut 11 which is screwed upon its projectingend. Pivotally mounted upon said rod within the draw-head and extendingin its normal or inoperative position, obliquely downward and to therear is a trip-block 12,'and this trip-block carries revolubly in therecess formed in its front and lower margin the anti-friction roller 13,which rests upon the lower wall of the recess 4:, adjacent to the rearmargin of the vertical passage 8. This trip block is also provided witha hole or aperture 14: through its central por tion', and at the rear orlower margin of the said aperture shoulders 15 and 16 are provided; theshoulder 15 being horizontal and the shoulder 16 being vertical orapproximately so, when the trip-block is in its normal inoperativeposition, as shown in Fig. 1. the trip-block is in its inoperativeposition, the cars are uncoupled and the lower end of the pin 9 restsupon the horizontal shoulder 15, and the vertical shoulder 16 adjacentto the rear side said pin prevents the pin from accidental displacementtoward the rear. The pin and the block being in the position shown inFig. 1, the link carried by the opposing draw-head enters the mouth 3and striking against the trip-block forces it pivotally to the rear, andto the position shown in Fig. 2, with the anti-friction roller restingupon the upper side of the link. As soon as the tripblock is moved asufficient distance, the pin 9, by gravity descends and passing throughthe link engages the passage 8 in the lower portion of the draw-head andsecures the cars together.

The coupling pin is adapted to be connected to lifting mechanism of anysuitable and ordinary construction whereby it may be raised to allow thelink to be withdrawn, and the tripblock to swing forwardly to itsoriginal position. Thepinisnowreleasedsothatitdescends and rests uponthe shoulder 15 as before. By providing the anti-friction roller 13 itwill be When seen that friction between the lower wall of the draw-headand the trip-block, and the link and the trip-block is decreased to theminimum, so that no binding will result in the operation of the device.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The combination in a car-coupler, of a drawhead having verticallyaligned pin passages, of a pin-supporting trip-block pivoted within saiddraw-head, and provided with an antifriction roller at its lower end,substantially as set forth.

In testimony whereof I affix my signature in the presence of twowitnesses.

, LIVY D. MURPHY.

Witnesses:

G. Y. THORPE, WM. H. BROWN.

